The Stuart Turner Beam Engine

The base pedestal set up on the mill for surfacing
the top registers. The base underside has already had a light
milling to clean up the casting and give a firm clamping surface.
Only the minimum amount of material needs to
be removed and it was all done in one pass. The height setting must not be
moved as the outrigger must be exactly the same height...

The outrigger being milled. Again, the base of
this part was done before the final cut was setup for the
top of the main base. This ensures that both parts are the same height. Not
very secure clamping here so the cut was taken very carefully and along the
surface not accross it.